64 65 66 Buick Riviera Exhaust Manifold Heat Riser Gasket 1964 1965 1966 NEW

This gasket goes between the passenger side exhaust manifold and the heat riser. 1963, 1964, 1965, and 1966 Buick Riviera models. 1959, 1960, 1961, 1962, 1963, 1964, 1965, and 1966 Buick LeSabre, Invicta, Wildcat, and Electra 225 models.